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Lasham Woods, Lasham Rd
Alton, GU34 5FZ

+44 1256 381 222


Technical Resources



An auto belay is an automatic belay device that eliminates the need for a human belayer.  

  • Line specs: 8.5m, 12.2m, or 16.1m (28ft, 40ft, or 53ft.) long, comprised of 25mm / 1 inch wide Nylon/ Spectra Webbing. Minimum breaking strength 15.6 kn (3,500 lbs) when new.

  • Maximum mounting height

    • 8.5m (28ft) unit: 8.5m

    • 12.2m (40ft) unit: 12.2m

    • 16.1m (53ft) unit: 16.1m

  • Case Dimensions: 40x24x19 cm (16x9.5x7.5 in)

  • Net Weight: 13.8 kg - 14.1 kg depending on lanyard and carabiner type

  • Decent rate:

    • maximum: 2m/s (6.6 ft/s)

    • minimum: 0.5 m/s (1.6 ft/s)

  • Retraction rate:

    • Speed Drive: 4.6 m/s (15 ft/s)

    • Direct Drive: 0.6 m/s (2 ft/s)

  • Maximum weight of climber: 140 kg

  • Minimum weight of climber: 11.4 kg

  • Minimum temperature for use: 0° C

  • Materials

    • casing: stainless steel and aluminium

    • internal parts: stainless steel and/or aluminium